For reason I cant explain (some of you know) I need to go back to Australia

TL;DR version

Am Dutch
Got married to an aussie girl
Had kid
Had issues with visa in Australia
Moved back to Belgium (dont ask)
Marriage broke up
Ex and kid moved back to Australia
Now I want to follow my son

So what I need is the following:

A list of companies that are big and possibly do sponsorship visa's
If you know someone who owns a company or works in a big company and is a worthwhile contact, let me know!
If you are a single australian woman or know a single australian woman (legal age pl0x) ... we can arrange something ;x

Please for the love of all that is Gaming, help me out. I havent seen my son in 1.5 years except webcam and today he asked if Santa could bring me to his christmas party on his sleigh

I see. Well then, I suggest that you check whether or not the Dutch government allows Dual Citizenship (I believe they do) and apply for a Citizenship Test in an Australian embassy/during your "Visitor's Stay". You can gain permanent Australian citizenship while retaining your Dutch citizenship if you file in the correct papers.

Everything's described pretty vividly on Australia's Department of Immigration homepage.